Question

1. Carbon tetrachloride has a vapor pressure of 213 torr at 40.°C and 915 torr at 83°C. What is the normal boiling point of CCl4? Boiling point = ___ C 2. Diethyl ether was one of the first chemicals used as an anesthetic. At 34.6°C, diethyl ether has a vapor pressure of 760. torr, and at 18.1°C, it has a vapor pressure of 407 torr. What is the ΔH of vaporization for diethyl ether? ΔH of vaporization = ___ kJ/mol 3.An aqueous antifreeze solution is 23.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 . Calculate the molality, molarity, and mole fraction of the ethylene glycol Molality = ___mol/kg Molarity = ___ mol/L Mole fraction =